Added keepass password manager. Updated mono DLLMap to allow mono to run WinForms applications (keepass).

pkgs/applications/misc/keepass/default.nix

@@ -0,0 +1,45 @@
+{ stdenv, fetchurl, unzip, makeDesktopItem, mono }:
+
+stdenv.mkDerivation rec {
+  name = "keepass-${version}";
+  version = "2.22";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/keepass/KeePass-${version}.zip";
+    sha256 = "0mman7r1jmirfwzix5qww0yn4rrgzcg7546basxjvvfc8flp43j0";
+  };
+
+  sourceRoot = ".";
+
+  phases = [ "unpackPhase" "installPhase" ];
+
+  desktopItem = makeDesktopItem {
+    name = "keepass";
+    exec = "keepass";
+    comment = "Password manager";
+    desktopName = "Keepass";
+    genericName = "Password manager";    
+    categories = "Application;Other;";
+  };
+
+
+  installPhase = ''
+    ensureDir "$out/bin"
+    echo "${mono}/bin/mono $out/KeePass.exe" > $out/bin/keepass
+    chmod +x $out/bin/keepass
+    echo $out
+    cp -r ./* $out/
+    ensureDir "$out/share/applications"
+    cp ${desktopItem}/share/applications/* $out/share/applications
+  '';
+
+  buildInputs = [ unzip ];
+
+  meta = {
+    description = "GUI password manager with strong cryptography";
+    homepage = http://www.keepass.info/;
+    maintainers = with stdenv.lib.maintainers; [amorsillo];
+    platforms = with stdenv.lib.platforms; all;
+    license = stdenv.lib.licenses.gpl2;
+  };
+}